Precision of MRI/ultrasound-fusion biopsy in prostate cancer diagnosis: an ex vivo comparison of alternative biopsy techniques on prostate phantoms
Purpose: Comparing the accuracy of MRI/ultrasound-guided target-biopsy by transrectal biopsy (TRB) with elastic versus rigid image fusion versus transperineal biopsy (TPB) with rigid image fusion in a standardized setting. Methods: Target-biopsy of six differently sized and located lesions was perfo...
Gespeichert in:
| Hauptverfasser: | , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
2017
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| In: |
World journal of urology
Year: 2017, Jahrgang: 35, Heft: 7, Pages: 1015-1022 |
| ISSN: | 1433-8726 |
| DOI: | 10.1007/s00345-016-1967-3 |
| Online-Zugang: | Verlag, Volltext: http://dx.doi.org/10.1007/s00345-016-1967-3 Verlag, Volltext: https://link-springer-com.ezproxy.medma.uni-heidelberg.de/article/10.1007/s00345-016-1967-3 
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| Verfasserangaben: | N. Westhoff, F.P. Siegel, D. Hausmann, M. Polednik, J. von Hardenberg, M.S. Michel, M. Ritter |
MARC
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| 245 | 1 | 0 | |a Precision of MRI/ultrasound-fusion biopsy in prostate cancer diagnosis |b an ex vivo comparison of alternative biopsy techniques on prostate phantoms |c N. Westhoff, F.P. Siegel, D. Hausmann, M. Polednik, J. von Hardenberg, M.S. Michel, M. Ritter |
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| 520 | |a Purpose: Comparing the accuracy of MRI/ultrasound-guided target-biopsy by transrectal biopsy (TRB) with elastic versus rigid image fusion versus transperineal biopsy (TPB) with rigid image fusion in a standardized setting. Methods: Target-biopsy of six differently sized and located lesions was performed on customized CIRS 070L prostate phantoms. Lesions were only MRI-visible. After prior MRI for lesion location, one targeted biopsy per lesion was obtained by TRB with elastic image fusion with Artemis™ (Eigen, USA), TRB with rigid image fusion with real-time virtual sonography (Hitachi, Japan) and TPB with rigid image fusion with a brachytherapy approach (Elekta, Sweden), each on a phantom of 50, 100 and 150 ml prostate volume. The needle trajectories were marked by contrast agent and detected in a postinterventional MRI. Results: Overall target detection rate was 79.6% with a slight superiority for the TPB (83.3 vs. 77.8 vs. 77.8%). TRB with elastic image fusion showed the highest overall precision [median distance to lesion center 2.37 mm (0.14-4.18 mm)], independent of prostate volume. Anterior lesions were significantly more precisely hit than transitional and basal lesions (p = 0.034; p = 0.015) with comparable accuracy for TRB with elastic image fusion and TPB. In general, TRB with rigid image fusion was inferior [median 3.15 mm (0.37-10.62 mm)], particularly in small lesions. Conclusion: All biopsy techniques allow detection of clinically significant tumors with a median error of 2-3 mm. Elastic image fusion appears to be the most precise technique, independent of prostate volume, target size or location. | ||
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